140G-H3F4-D10

The Allen-Bradley 140G-H3F4-D10 represents a robust molded case circuit breaker that caters to the demands of modern electrical systems. Designed with an H frame, this unit can handle currents up to 125 amps, ensuring effective protection against overloads and short circuits. With an impressive interrupting rating of 35 kA, it safeguards connected circuits from potential damage. The circuit breaker features four poles, allowing it to accommodate various wiring configurations and requirements, particularly in three-phase applications.

This model utilizes adjustable thermal and magnetic protection mechanisms, enabling personalized setup based on specific system needs. The rated insulation voltage stands at 1000 V, making it capable of functioning safely under high-voltage conditions. Additionally, the 140G-H3F4-D10 can endure impulse withstand voltages reaching 8 kV, providing further resilience against voltage spikes. It is lightweight at 3.53 pounds, making installation manageable.

The operational efficiency is underscored by a mechanical lifespan rating of 240 operations per hour and an electrical lifespan rated at 120 operations per hour. This breaker is well-suited for applications requiring frequent cycling and reliability, ensuring continued service in demanding environments.